Patents by Inventor Ung-Gyu Min
Ung-Gyu Min has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20150356923Abstract: A display device includes a plurality of display pixels, a plurality of data lines that are connected to the display pixels, and a plurality of sensing lines that are connected to the display pixels. Each display pixel includes a driving transistor comprising a first terminal, a second terminal, and a third terminal, a capacitor connected to the first terminal of the driving transistor, a first switching transistor connected to the data line and the first terminal of the driving transistor, a light-emitting element connected to the third terminal of the driving transistor configured to emit light, a second switching transistor connected between the sensing line and the light-emitting element, and a third switching transistor connected between the third terminal of the driving transistor and the light-emitting element.Type: ApplicationFiled: August 14, 2015Publication date: December 10, 2015Inventors: Ung-Gyu MIN, Oh-Kyong Kwon
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Patent number: 9185396Abstract: A lens module includes a lens panel and a lens driving part. The lens panel includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes first electrodes and second electrodes alternately disposed thereon that partially overlap each other and are electrically insulated from each other. The second substrate is opposite to the first substrate. The liquid crystal layer is disposed between the first substrate and the second substrate. The lens driving part provides a substantially equal voltage to both ends of each of the first and second electrodes.Type: GrantFiled: January 9, 2012Date of Patent: November 10, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hae-Young Yun, Ung-Gyu Min, Seung-Hoon Lee, Seung-Jun Jeong, Kyoung-Ju Shin, Jin-Hwan Kim, Kyung-Ho Jung
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Patent number: 9153196Abstract: A display device includes a display panel including a gate line, a data line, and a pixel connected to the gate line and the data line, a data driver connected to the data line, a gate driver connected to the gate line, and a signal controller controlling the data driver and the gate driver, wherein a circuits powering power source voltage that is normally used for driving the data driver is selectively not applied during a new-image blanking time when the signal controller is not supplying image data to the data driver.Type: GrantFiled: July 11, 2013Date of Patent: October 6, 2015Assignee: Samsung Display Co., Ltd.Inventors: Seok Ha Hong, Dae-Gwang Jang, Sang Mi Kim, Ung Gyu Min, Ji Myoung Seo, Bong Hyun You, Hyun Sik Hwang, Gi Geun Kim, Jong Hee Kim, Kyoung Won Lee
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Patent number: 9111487Abstract: A display device and a method of driving the same are provided. The display device includes a plurality of display pixels, a plurality of data lines that are connected to the display pixels, and a plurality of sensing lines that are connected to the display pixels. Each display pixel includes: a driving transistor that has a control terminal, an input terminal, and an output terminal; a capacitor that is connected to the control terminal of the driving transistor; a first switching transistor that is connected to the data line and the control terminal of the driving transistor; a light-emitting element that receives a driving current from the driving transistor to emit light; a second switching transistor that is connected between the sensing line and the light-emitting element; and a third switching transistor that is connected between the output terminal of the driving transistor and the light-emitting element.Type: GrantFiled: September 11, 2012Date of Patent: August 18, 2015Assignees: Samsung Display Co., Ltd., IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)Inventors: Ung-Gyu Min, Oh-Kyong Kwon
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Publication number: 20150123961Abstract: A liquid crystal display includes: a display panel; a signal controller configured to receive an input image signal and an input control signal, output an output image signal and an output control signal, and determine a charge sharing between two or more data lines having voltages in the same polarity; and a data driver configured to convert, based on the output control signal, the image signal into data voltages to be supplied to the data lines connected to the pixels, the data voltages having positive levels and negative levels. The data driver is further configured to perform a first charge sharing by short-circuiting first and second data lines that are adjacent to each other, and a second charge sharing by short-circuiting third and fourth data lines having data voltages in the same polarity, wherein the first charge sharing and the second charge sharing may not temporally overlap with each other.Type: ApplicationFiled: October 24, 2014Publication date: May 7, 2015Inventors: Su Hyeong PARK, Ung Gyu MIN, Ji Myoung SEO, Cheol Woo PARK, Ho Yong JUNG
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Patent number: 8982108Abstract: A display device including: a display panel; and a signal controller which controls signals for driving the display panel, where the signal controller includes a representative value generator which sequentially operates a portion of image data of one frame, where the representative value generator moves a last position digit into another position digit of the portion of the image data and generates a representative value representing a portion of a frame image corresponding to the portion of the image data; a storage portion which stores the representative value therein; and a comparator which compares the representative values of present and prior frames to determine whether the portion of the frame image is a still image or a motion picture, and the signal controller controls the signals for driving the display panel such that a driving frequency for the still image is lower than a driving frequency for the motion picture.Type: GrantFiled: November 30, 2012Date of Patent: March 17, 2015Assignee: Samsung Display Co., Ltd.Inventors: Kyoung Won Lee, Seung Seok Nam, Cheol Woo Park, Kyoung Ho Lim, Dae-Gwang Jang, Gi Geun Kim, Eun Ho Lee, Ung Gyu Min, Seok Ha Hong
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Publication number: 20140313181Abstract: A controller controls the driving frequency and voltages for a display device. If image data corresponds to a moving picture, the controller drives a data driver and a gate driver at a moving picture frequency. If image data corresponds to a still image, drives the data driver and the gate driver at a still image frequency lower frequency than the moving picture frequency. When the still image is to be displayed, the signal controller also controls leakage current of a thin film transistor of a pixel based on a representative value of the image data, such that positive leakage current applied for a positive data voltage is equal to negative leakage current applied for a negative data voltage.Type: ApplicationFiled: January 3, 2014Publication date: October 23, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Seok Ha HONG, Dae-Gwang JANG, Byung Sun KIM, Sang Mi KIM, Ung Gyu MIN, Hyun Sik HWANG, Gi Geun KIM, Kyoung Won LEE
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Publication number: 20140160182Abstract: A display device includes a display panel including a gate line, a data line, and a pixel connected to the gate line and the data line, a data driver connected to the data line, a gate driver connected to the gate line, and a signal controller controlling the data driver and the gate driver, wherein a circuits powering power source voltage that is normally used for driving the data driver is selectively not applied during a new-image blanking time when the signal controller is not supplying image data to the data driver.Type: ApplicationFiled: July 11, 2013Publication date: June 12, 2014Applicant: Samsung Display Co., Ltd.Inventors: Seok Ha HONG, Dae-Gwang JANG, Sang Mi KIM, Ung Gyu MIN, Ji Myoung SEO, Bong Hyun YOU, Hyun Sik HWANG, Gi Geun KIM, Jong Hee KIM, Kyoung Won LEE
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Publication number: 20140085276Abstract: A driving method of a display device includes: determining each of a plurality of pixel rows of the display device as one of a motion picture display pixel row and a still image display pixel row by comparing image data of each of the pixel rows in a current frame and in a previous frame; and driving the motion picture display pixel row with a motion picture frequency and driving the still image display pixel row with a still image display frequency, which is lower than or equal to the motion picture frequency, where a plurality of still image display pixel rows are driven with at least two still image display frequencies.Type: ApplicationFiled: July 24, 2013Publication date: March 27, 2014Applicant: Samsung Display Co., Ltd.Inventors: Dae-Gwang JANG, Ung Gyu MIN, Seok Ha HONG, Hyun Sik HWANG, Byung Sun KIM, Sang Mi KIM, Bong Hyun YOU, Ji Myoung SEO
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Publication number: 20140022220Abstract: A display device including: a display panel; and a signal controller which controls signals for driving the display panel, where the signal controller includes a representative value generator which sequentially operates a portion of image data of one frame, where the representative value generator moves a last position digit into another position digit of the portion of the image data and generates a representative value representing a portion of a frame image corresponding to the portion of the image data; a storage portion which stores the representative value therein; and a comparator which compares the representative values of present and prior frames to determine whether the portion of the frame image is a still image or a motion picture, and the signal controller controls the signals for driving the display panel such that a driving frequency for the still image is lower than a driving frequency for the motion picture.Type: ApplicationFiled: November 30, 2012Publication date: January 23, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Kyoung Won LEE, Seung Seok NAM, Cheol Woo PARK, Kyoung Ho LIM, Dae-Gwang JANG, Gi Geun KIM, Eun Ho LEE, Ung Gyu MIN, Seok Ha HONG
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Patent number: 8610735Abstract: An image converting device includes; a downscaling unit which downscales a two-dimensional image to generate at least one downscaling image, a feature map generating unit which extracts feature information from the downscaling image to generate a feature map, a visual attention calculating unit which generates a low-level attention map based on a visual attention of the feature map, and an image expansion unit which up-scales the low-level attention map, wherein an increasing gray value may be added to image data disposed on the upper portion in the low-level attention map, and 0 or a decreasing gray value may be added to the image data disposed on the lower portion.Type: GrantFiled: October 27, 2010Date of Patent: December 17, 2013Assignee: Samsung Display Co., Ltd.Inventors: Mun-San Park, Cheol-Woo Park, Ung-Gyu Min
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Patent number: 8564510Abstract: The present invention relates to a structure and a method of a pixel and a data driver to measure degradation of an organic light emitting element, and a threshold voltage and mobility of a driving transistor in an organic light emitting device such that degradation of the organic light emitting element and the threshold voltage and mobility of the driving transistor are measured in a turn-on interval of the display device and a data voltage applied to the pixel is amended, and thereby images of improved and uniform quality may be displayed.Type: GrantFiled: June 30, 2009Date of Patent: October 22, 2013Assignees: Samsung Display Co., Ltd., Industry-University Cooperation Foundation Hanyang UniversityInventors: Ung-Gyu Min, Oh-Kyong Kwon
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Publication number: 20130002643Abstract: A display device and a method of driving the same are provided. The display device includes a plurality of display pixels, a plurality of data lines that are connected to the display pixels, and a plurality of sensing lines that are connected to the display pixels. Each display pixel includes: a driving transistor that has a control terminal, an input terminal, and an output terminal; a capacitor that is connected to the control terminal of the driving transistor; a first switching transistor that is connected to the data line and the control terminal of the driving transistor; a light-emitting element that receives a driving current from the driving transistor to emit light; a second switching transistor that is connected between the sensing line and the light-emitting element; and a third switching transistor that is connected between the output terminal of the driving transistor and the light-emitting element.Type: ApplicationFiled: September 11, 2012Publication date: January 3, 2013Applicants: IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), SAMSUNG DISPLAY CO., LTD.Inventors: Ung-Gyu MIN, Oh-Kyong KWON
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Patent number: 8334826Abstract: The present invention relates to a pixel and a data driver, and a driving method thereof to measure degradation of an organic light emitting element and a threshold voltage and mobility of a driving transistor in an organic light emitting device, wherein the degradation of the organic light emitting element and the threshold voltage and the mobility of the driving transistor are measured in a turn-on interval or a frame interval of the display device to amend the data voltage applied to the pixel, and thereby images of improved and uniform quality may be displayed.Type: GrantFiled: July 21, 2009Date of Patent: December 18, 2012Assignees: Samsung Display Co., Ltd., Industry-University Cooperation Foundation Hanyang UniversityInventors: Ung-Gyu Min, Oh-Kyong Kwon
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Publication number: 20120300042Abstract: A lens module includes a lens panel and a lens driving part. The lens panel includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes first electrodes and second electrodes alternately disposed thereon that partially overlap each other and are electrically insulated from each other. The second substrate is opposite to the first substrate. The liquid crystal layer is disposed between the first substrate and the second substrate. The lens driving part provides a substantially equal voltage to both ends of each of the first and second electrodes.Type: ApplicationFiled: January 9, 2012Publication date: November 29, 2012Inventors: HAE-YOUNG YUN, Ung-Gyu Min, Seung-Hoon Lee, Seung-Jun Jeong, Kyoung-Ju Shin, Jin-Hwan Kim, Kyung-Ho Jung
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Patent number: 8294696Abstract: The present invention provides a display device and a method of driving the same. The display device includes a plurality of display pixels to display an image, a plurality of data lines connected to the display pixel, and a plurality of sensing lines connected to the display pixel.Type: GrantFiled: March 18, 2009Date of Patent: October 23, 2012Assignees: Samsung Display Co., Ltd., IUCF-HYUInventors: Ung-Gyu Min, Oh-Kyong Kwon
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Patent number: 8289247Abstract: A display device and a method of driving the same are provided. The display device includes a plurality of display pixels, a plurality of data lines that are connected to the display pixels, and a plurality of sensing lines that are connected to the display pixels. Each display pixel includes: a driving transistor that has a control terminal, an input terminal, and an output terminal; a capacitor that is connected to the control terminal of the driving transistor; a first switching transistor that is connected to the data line and the control terminal of the driving transistor; a light-emitting element that receives a driving current from the driving transistor to emit light; a second switching transistor that is connected between the sensing line and the light-emitting element; and a third switching transistor that is connected between the output terminal of the driving transistor and the light-emitting element.Type: GrantFiled: March 11, 2009Date of Patent: October 16, 2012Assignees: Samsung Display Co., Ltd., Industry-University Cooperation Foundation Hanyang UniversityInventors: Ung-Gyu Min, Oh-Kyong Kwon
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Publication number: 20120194509Abstract: To display at least one three-dimensional (3D) image in a two-dimensional (2D) image display area, a method and apparatus is provided for distinguishing a 3D image display area, in which the at least one 3D image is displayed, from the 2D image display area, and displaying a 2D image and a 3D image in the 2D image display area and the 3D image display area, respectively, thereby improving display resolution.Type: ApplicationFiled: August 12, 2011Publication date: August 2, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hae-Young YUN, Ung-Gyu MIN, Myung-Hwan KIM
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Publication number: 20110249886Abstract: An image converting device includes; a downscaling unit which downscales a two-dimensional image to generate at least one downscaling image, a feature map generating unit which extracts feature information from the downscaling image to generate a feature map, wherein the feature map includes a plurality of objects, an object segmentation unit which divides the plurality of objects, an object order determining unit which determines a depth order of the plurality of objects, and adds a first weight value to an object having the shallowest depth among the plurality of objects, and a visual attention calculating unit which generates a low-level attention map based on visual attention of the feature map.Type: ApplicationFiled: January 6, 2011Publication date: October 13, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Mun-San PARK, Cheol-Woo PARK, Ung-Gyu MIN
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Publication number: 20110248988Abstract: An image converting device includes; a downscaling unit which downscales a two-dimensional image to generate at least one downscaling image, a feature map generating unit which extracts feature information from the downscaling image to generate a feature map, a visual attention calculating unit which generates a low-level attention map based on a visual attention of the feature map, and an image expansion unit which up-scales the low-level attention map, wherein an increasing gray value may be added to image data disposed on the upper portion in the low-level attention map, and 0 or a decreasing gray value may be added to the image data disposed on the lower portion.Type: ApplicationFiled: October 27, 2010Publication date: October 13, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Mun-San PARK, Cheol-Woo PARK, Ung-Gyu MIN